Application: plasmashell (5.4.0) Qt Version: 5.4.2 Operating System: Linux 4.1.0-3-generic x86_64 Distribution: Ubuntu Wily Werewolf (development branch) -- Information about the crash: - What I was doing when the application crashed: Switching between virtual desktops. - Custom settings of the application: Desktop Cube Animation under Desktop Effects is enabled. Will test with different DTE enabled. The crash can be reproduced sometimes. -- Backtrace: Application: Plasma (plasmashell), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7f56bb345800 (LWP 2026))] Thread 8 (Thread 0x7f56a69c5700 (LWP 2028)): #0 0x00007f56b5b1b8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f56b9b35bd2 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #2 0x00007f56b9b3774f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 #3 0x00007f56a8d0f9e9 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so #4 0x00007f56b620d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f56b52fd6aa in start_thread (arg=0x7f56a69c5700) at pthread_create.c:333 #6 0x00007f56b5b26eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 7 (Thread 0x7f569ffff700 (LWP 2032)): #0 0x00007f56b5b1b8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f56b28c617c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f56b28c628c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f56b6443e1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007f56b63ea2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f56b6208374 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007f56b8a05f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007f56b620d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007f56b52fd6aa in start_thread (arg=0x7f569ffff700) at pthread_create.c:333 #9 0x00007f56b5b26eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 6 (Thread 0x7f5694f46700 (LWP 2033)): #0 0x00007f56b6443373 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #1 0x00007f56b28c570d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f56b28c60ab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f56b28c628c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f56b6443e1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f56b63ea2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007f56b6208374 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007f56b8a05f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #8 0x00007f56b620d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x00007f56b52fd6aa in start_thread (arg=0x7f5694f46700) at pthread_create.c:333 #10 0x00007f56b5b26eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 5 (Thread 0x7f568e68d700 (LWP 2037)): #0 0x00007f56b5b1b8dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f56b28c617c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f56b28c628c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f56b6443e1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x00007f56b63ea2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x00007f56b6208374 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007f56b8a05f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #7 0x00007f56b620d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007f56b52fd6aa in start_thread (arg=0x7f568e68d700) at pthread_create.c:333 #9 0x00007f56b5b26eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 4 (Thread 0x7f568cd95700 (LWP 2038)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007f56bad93114 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #2 0x00007f56bad93159 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #3 0x00007f56b52fd6aa in start_thread (arg=0x7f568cd95700) at pthread_create.c:333 #4 0x00007f56b5b26eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 3 (Thread 0x7f56863b9700 (LWP 2039)): #0 0x00007f56b5b1749d in read () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f56b2909810 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f56b28c5c64 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f56b28c6120 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f56b28c628c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f56b6443e1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007f56b63ea2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007f56b6208374 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007f56b9380e66 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #9 0x00007f56b620d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007f56b52fd6aa in start_thread (arg=0x7f56863b9700) at pthread_create.c:333 #11 0x00007f56b5b26eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 2 (Thread 0x7f55f0b0d700 (LWP 2041)): #0 0x00007f56b5b1749d in read () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f56b2909810 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x00007f56b28c5c64 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x00007f56b28c6120 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x00007f56b28c628c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x00007f56b6443e1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007f56b63ea2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x00007f56b6208374 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x00007f55f2da76b7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so #9 0x00007f56b620d25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x00007f56b52fd6aa in start_thread (arg=0x7f55f0b0d700) at pthread_create.c:333 #11 0x00007f56b5b26eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7f56bb345800 (LWP 2026)): [KCrash Handler] #6 brw_meta_fast_clear (brw=brw@entry=0x2903fa8, fb=fb@entry=0x49af6b0, buffers=buffers@entry=34, partial_clear=partial_clear@entry=false) at ../../../../../../../src/mesa/drivers/dri/i965/brw_meta_fast_clear.c:446 #7 0x00007f569dbaf06c in brw_clear (ctx=0x2903fa8, mask=34) at ../../../../../../../src/mesa/drivers/dri/i965/brw_clear.c:246 #8 0x00007f56b93b339a in QSGBatchRenderer::Renderer::renderBatches() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #9 0x00007f56b93b7b5a in QSGBatchRenderer::Renderer::render() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #10 0x00007f56b93c2a3c in QSGRenderer::renderScene(QSGBindable const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #11 0x00007f56b93c2ebb in QSGRenderer::renderScene(unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #12 0x00007f56b93d15de in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #13 0x00007f56b941b22c in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #14 0x00007f56b93ebbcc in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #15 0x00007f56b93ec6f1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #16 0x00007f56b6ecab8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #17 0x00007f56b6ed0230 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 #18 0x00007f56b63eca9b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #19 0x00007f56b6442c1d in QTimerInfoList::activateTimers() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #20 0x00007f56b6443121 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #21 0x00007f56b28c5f87 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #22 0x00007f56b28c61e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #23 0x00007f56b28c628c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #24 0x00007f56b6443dff in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #25 0x00007f56b63ea2da in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #26 0x00007f56b63f1e4c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #27 0x0000000000432063 in main (argc=4, argv=<optimized out>) at ../../shell/main.cpp:176 Possible duplicates by query: bug 352175, bug 352172, bug 352142, bug 352132, bug 352114. Reported using DrKonqi
This is crashing in your graphic driver which we can't do much about. Please upgrade/downgrade your version of mesa. See information (including a workaround in the linked report) *** This bug has been marked as a duplicate of bug 349519 ***